DataVXPolymers and Polymer CompositesPaper
journal article·1997-01

Synthesis and Properties of Block Copolymers of Poly(ether sulphone)s with Liquid Crystalline Polyester Units

Mitsuhiro Shibata, Ryutoku Yosomiya, Junzuo Wang, Chunhai Chen, Guohong Bai, Zhongwen Wu, Shanger Wang, Zhishen Mo

Polymers and Polymer Composites· Volume 5· Issue 1
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Source abstract

Abstract

Block copolymers of poly(ethersulphone) (PES) oligomers with liquid crystalline polyester units were synthesized by the reaction of dihydroxy-terminated poly(ether sulphone) oligomers (number-average molecular weights: 704, 1,158 and 2570) and terephthaloyl bis(4-oxybenzoyl chloride), and their properties were investigated. The results indicated that the copolymer with PES segments of molecular weight of 704 possessed birefringent features when annealed at 360°C, while the copolymer with PES segments of molecular weight of 2,570 became isotropic. Also, the block copolymers had a better chemical resistance and high-temperature stability than PES.
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Research context

OpenAlex topics: Synthesis and properties of polymers · Silicone and Siloxane Chemistry · biodegradable polymer synthesis and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Industrial Chemistry, Chiba Institute of Technology, 2-17-1, Tsudanuma, Narashino, Chiba 275, Japan

Department of Chemistry, Jilin University, Changchun, 130023, China

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130021, China

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